Upper Shetianqiao Fmn, unit 6, Xikuangshan section, Xinhua County, Hunan (Devonian of China)

Where: Hunan, China (27.8° N, 111.5° E: paleocoordinates 4.4° S, 109.3° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Shetianqiao Formation, Frasnian (382.7 - 372.2 Ma)

• This section cannot be dated with conodonts. Lower Xikuangshan Fmn has two brachiopod zones (Yunnanella and Yunnanellina), which are thought to correlated with crepida conodont zone (early Famennian). Presence of Atrypacea and Pentameracea in Shetianqiao Fmn suggests this is still Frasnian, correlated with Upper triangularis Zone. (NB units 5 to 11 are covered in this section; 11 is highest, 5 is lowest.)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; marl and shelly/skeletal, argillaceous limestone

• "typical neritic facies"
• "Grey, thin to medium bedded marl intercalated with bioclastic muddy limestone, yielding rich corals...brachiopods...bryozoa...1.6m"

Primary reference: K. Wang and S. Ba. 1988. Faunal changes and events near the Frasnian-Famennian boundary of South China. In N. J. McMillan, A. F. Embry, and D. J. Glass (eds.), Devonian of the World, Volume III. Canadian Society of Petroleum Geologists. Calgary, Alberta, Canada 71-78 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 40569: authorized by Michael Foote, entered by Michael Foote on 25.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Trepostomida -
 Rhabdomesida - Rhomboporidae
Rhombopora sp. Meek 1872
 Productida - Araksalosiidae
"Productella lachrymosa" = Whidbornella lachrymosa
"Productella lachrymosa" = Whidbornella lachrymosa Conrad 1842
 Orthotetida - Schuchertellidae
Schuchertella sp. Girty 1904
 Spiriferida - Cyrtospiriferidae
 Pentamerida - Gypidulidae
Gypidula sp. Hall 1867
 Atrypida - Atrypidae
Spinatrypina sp. Rzhonsnitskaya 1964
 Rhynchonellida - Camarotoechiidae
 Auloporida - Syringoporidae
Syringopora sp. Goldfuss 1826 tabulate coral
 Favositida - Pachyporidae
Thamnopora sp. Steininger 1831 tabulate coral
 Favositida - Alveolitidae
Alveolites sp. Lamarck 1801 tabulate coral
 Stauriida - Disphyllidae
Disphyllum caespitosum Goldfuss 1826 horn coral
Temnophyllum sp. Walther 1928 horn coral
 Stauriida - Phillipsastreidae
"Phillipsastraea macouni" = Phillipsastrea, "Phillipsastraea carinata" = Phillipsastrea, Peneckiella sp.
"Phillipsastraea macouni" = Phillipsastrea horn coral
"Phillipsastraea carinata" = Phillipsastrea horn coral
Peneckiella sp. Soshkina 1939 horn coral
 Stauriida - Cyathophyllidae
Mictophyllum sp. Lang and Smith 1939 horn coral